diff options
Diffstat (limited to 'git-rebase.sh')
| -rwxr-xr-x | git-rebase.sh | 234 |
1 files changed, 185 insertions, 49 deletions
diff --git a/git-rebase.sh b/git-rebase.sh index 528b604cd5..fb4fef7b1d 100755 --- a/git-rebase.sh +++ b/git-rebase.sh @@ -3,7 +3,7 @@ # Copyright (c) 2005 Junio C Hamano. # -USAGE='[--interactive | -i] [-v] [--onto <newbase>] <upstream> [<branch>]' +USAGE='[--interactive | -i] [-v] [--force-rebase | -f] [--onto <newbase>] [<upstream>|--root] [<branch>] [--quiet | -q]' LONG_USAGE='git-rebase replaces <branch> with a new branch of the same name. When the --onto option is provided the new branch starts out with a HEAD equal to <newbase>, otherwise it is equal to <upstream> @@ -34,6 +34,9 @@ set_reflog_action rebase require_work_tree cd_to_toplevel +LF=' +' +OK_TO_SKIP_PRE_REBASE= RESOLVEMSG=" When you have resolved this problem run \"git rebase --continue\". If you would prefer to skip this patch, instead run \"git rebase --skip\". @@ -45,7 +48,11 @@ do_merge= dotest="$GIT_DIR"/rebase-merge prec=4 verbose= +diffstat=$(git config --bool rebase.stat) git_am_opt= +rebase_root= +force_rebase= +allow_rerere_autoupdate= continue_merge () { test -n "$prev_head" || die "prev_head must be defined" @@ -68,11 +75,18 @@ continue_merge () { echo "directly, but instead do one of the following: " die "$RESOLVEMSG" fi - printf "Committed: %0${prec}d " $msgnum + if test -z "$GIT_QUIET" + then + printf "Committed: %0${prec}d " $msgnum + fi else - printf "Already applied: %0${prec}d " $msgnum + if test -z "$GIT_QUIET" + then + printf "Already applied: %0${prec}d " $msgnum + fi fi - git rev-list --pretty=oneline -1 "$cmt" | sed -e 's/^[^ ]* //' + test -z "$GIT_QUIET" && + GIT_PAGER='' git log --format=%s -1 "$cmt" prev_head=`git rev-parse HEAD^0` # save the resulting commit so we can read-tree on it later @@ -93,6 +107,10 @@ call_merge () { eval GITHEAD_$cmt='"${cmt_name##refs/heads/}~$(($end - $msgnum))"' eval GITHEAD_$hd='$(cat "$dotest/onto_name")' export GITHEAD_$cmt GITHEAD_$hd + if test -n "$GIT_QUIET" + then + export GIT_MERGE_VERBOSITY=1 + fi git-merge-$strategy "$cmt^" -- "$hd" "$cmt" rv=$? case "$rv" in @@ -101,7 +119,7 @@ call_merge () { return ;; 1) - git rerere + git rerere $allow_rerere_autoupdate die "$RESOLVEMSG" ;; 2) @@ -134,14 +152,39 @@ move_to_original_branch () { finish_rb_merge () { move_to_original_branch rm -r "$dotest" - echo "All done." + say All done. } is_interactive () { - test -f "$dotest"/interactive || - while :; do case $#,"$1" in 0,|*,-i|*,--interactive) break ;; esac + while test $# != 0 + do + case "$1" in + -i|--interactive) + interactive_rebase=explicit + break + ;; + -p|--preserve-merges) + interactive_rebase=implied + ;; + esac shift - done && test -n "$1" + done + + if [ "$interactive_rebase" = implied ]; then + GIT_EDITOR=: + export GIT_EDITOR + fi + + test -n "$interactive_rebase" || test -f "$dotest"/interactive +} + +run_pre_rebase_hook () { + if test -z "$OK_TO_SKIP_PRE_REBASE" && + test -x "$GIT_DIR/hooks/pre-rebase" + then + "$GIT_DIR/hooks/pre-rebase" ${1+"$@"} || + die "The pre-rebase hook refused to rebase." + fi } test -f "$GIT_DIR"/rebase-apply/applying && @@ -160,6 +203,9 @@ fi while test $# != 0 do case "$1" in + --no-verify) + OK_TO_SKIP_PRE_REBASE=yes + ;; --continue) test -d "$dotest" -o -d "$GIT_DIR"/rebase-apply || die "No rebase in progress?" @@ -175,6 +221,7 @@ do end=$(cat "$dotest/end") msgnum=$(cat "$dotest/msgnum") onto=$(cat "$dotest/onto") + GIT_QUIET=$(cat "$dotest/quiet") continue_merge while test "$msgnum" -le "$end" do @@ -187,6 +234,7 @@ do head_name=$(cat "$GIT_DIR"/rebase-apply/head-name) && onto=$(cat "$GIT_DIR"/rebase-apply/onto) && orig_head=$(cat "$GIT_DIR"/rebase-apply/orig-head) && + GIT_QUIET=$(cat "$GIT_DIR"/rebase-apply/quiet) git am --resolved --3way --resolvemsg="$RESOLVEMSG" && move_to_original_branch exit @@ -204,6 +252,7 @@ do msgnum=$(cat "$dotest/msgnum") msgnum=$(($msgnum + 1)) onto=$(cat "$dotest/onto") + GIT_QUIET=$(cat "$dotest/quiet") while test "$msgnum" -le "$end" do call_merge "$msgnum" @@ -215,6 +264,7 @@ do head_name=$(cat "$GIT_DIR"/rebase-apply/head-name) && onto=$(cat "$GIT_DIR"/rebase-apply/onto) && orig_head=$(cat "$GIT_DIR"/rebase-apply/orig-head) && + GIT_QUIET=$(cat "$GIT_DIR"/rebase-apply/quiet) git am -3 --skip --resolvemsg="$RESOLVEMSG" && move_to_original_branch exit @@ -226,9 +276,11 @@ do git rerere clear if test -d "$dotest" then + GIT_QUIET=$(cat "$dotest/quiet") move_to_original_branch else dotest="$GIT_DIR"/rebase-apply + GIT_QUIET=$(cat "$dotest/quiet") move_to_original_branch fi git reset --hard $(cat "$dotest/orig-head") @@ -257,15 +309,50 @@ do esac do_merge=t ;; + -n|--no-stat) + diffstat= + ;; + --stat) + diffstat=t + ;; -v|--verbose) verbose=t + diffstat=t + GIT_QUIET= + ;; + -q|--quiet) + GIT_QUIET=t + git_am_opt="$git_am_opt -q" + verbose= + diffstat= ;; --whitespace=*) git_am_opt="$git_am_opt $1" + case "$1" in + --whitespace=fix|--whitespace=strip) + force_rebase=t + ;; + esac + ;; + --ignore-whitespace) + git_am_opt="$git_am_opt $1" + ;; + --committer-date-is-author-date|--ignore-date) + git_am_opt="$git_am_opt $1" + force_rebase=t ;; -C*) git_am_opt="$git_am_opt $1" ;; + --root) + rebase_root=t + ;; + -f|--f|--fo|--for|--forc|force|--force-r|--force-re|--force-reb|--force-reba|--force-rebas|--force-rebase) + force_rebase=t + ;; + --rerere-autoupdate|--no-rerere-autoupdate) + allow_rerere_autoupdate="$1" + ;; -*) usage ;; @@ -275,6 +362,7 @@ do esac shift done +test $# -gt 2 && usage # Make sure we do not have $GIT_DIR/rebase-apply if test -z "$do_merge" @@ -301,32 +389,62 @@ else fi # The tree must be really really clean. -git update-index --ignore-submodules --refresh || exit +if ! git update-index --ignore-submodules --refresh > /dev/null; then + echo >&2 "cannot rebase: you have unstaged changes" + git diff-files --name-status -r --ignore-submodules -- >&2 + exit 1 +fi diff=$(git diff-index --cached --name-status -r --ignore-submodules HEAD --) case "$diff" in -?*) echo "cannot rebase: your index is not up-to-date" - echo "$diff" +?*) echo >&2 "cannot rebase: your index contains uncommitted changes" + echo >&2 "$diff" exit 1 ;; esac -# The upstream head must be given. Make sure it is valid. -upstream_name="$1" -upstream=`git rev-parse --verify "${upstream_name}^0"` || - die "invalid upstream $upstream_name" +if test -z "$rebase_root" +then + # The upstream head must be given. Make sure it is valid. + upstream_name="$1" + shift + upstream=`git rev-parse --verify "${upstream_name}^0"` || + die "invalid upstream $upstream_name" + unset root_flag + upstream_arg="$upstream_name" +else + test -z "$newbase" && die "--root must be used with --onto" + unset upstream_name + unset upstream + root_flag="--root" + upstream_arg="$root_flag" +fi # Make sure the branch to rebase onto is valid. onto_name=${newbase-"$upstream_name"} -onto=$(git rev-parse --verify "${onto_name}^0") || exit +case "$onto_name" in +*...*) + if left=${onto_name%...*} right=${onto_name#*...} && + onto=$(git merge-base --all ${left:-HEAD} ${right:-HEAD}) + then + case "$onto" in + ?*"$LF"?*) + die "$onto_name: there are more than one merge bases" + ;; + '') + die "$onto_name: there is no merge base" + ;; + esac + else + die "$onto_name: there is no merge base" + fi + ;; +*) + onto=$(git rev-parse --verify "${onto_name}^0") || exit + ;; +esac # If a hook exists, give it a chance to interrupt -if test -x "$GIT_DIR/hooks/pre-rebase" -then - "$GIT_DIR/hooks/pre-rebase" ${1+"$@"} || { - echo >&2 "The pre-rebase hook refused to rebase." - exit 1 - } -fi +run_pre_rebase_hook "$upstream_arg" "$@" # If the branch to rebase is given, that is the branch we will rebase # $branch_name -- branch being rebased, or HEAD (already detached) @@ -334,16 +452,16 @@ fi # $head_name -- refs/heads/<that-branch> or "detached HEAD" switch_to= case "$#" in -2) +1) # Is it "rebase other $branchname" or "rebase other $commit"? - branch_name="$2" - switch_to="$2" + branch_name="$1" + switch_to="$1" - if git show-ref --verify --quiet -- "refs/heads/$2" && - branch=$(git rev-parse --verify "refs/heads/$2" 2>/dev/null) + if git show-ref --verify --quiet -- "refs/heads/$1" && + branch=$(git rev-parse -q --verify "refs/heads/$1") then - head_name="refs/heads/$2" - elif branch=$(git rev-parse --verify "$2" 2>/dev/null) + head_name="refs/heads/$1" + elif branch=$(git rev-parse -q --verify "$1") then head_name="detached HEAD" else @@ -365,53 +483,70 @@ case "$#" in esac orig_head=$branch -# Now we are rebasing commits $upstream..$branch on top of $onto +# Now we are rebasing commits $upstream..$branch (or with --root, +# everything leading up to $branch) on top of $onto # Check if we are already based on $onto with linear history, # but this should be done only when upstream and onto are the same. mb=$(git merge-base "$onto" "$branch") if test "$upstream" = "$onto" && test "$mb" = "$onto" && # linear history? - ! (git rev-list --parents "$onto".."$branch" | grep " .* ") > /dev/null + ! (git rev-list --parents "$onto".."$branch" | sane_grep " .* ") > /dev/null then - # Lazily switch to the target branch if needed... - test -z "$switch_to" || git checkout "$switch_to" - echo >&2 "Current branch $branch_name is up to date." - exit 0 + if test -z "$force_rebase" + then + # Lazily switch to the target branch if needed... + test -z "$switch_to" || git checkout "$switch_to" + say "Current branch $branch_name is up to date." + exit 0 + else + say "Current branch $branch_name is up to date, rebase forced." + fi fi -if test -n "$verbose" +# Detach HEAD and reset the tree +say "First, rewinding head to replay your work on top of it..." +git checkout -q "$onto^0" || die "could not detach HEAD" +git update-ref ORIG_HEAD $branch + +if test -n "$diffstat" then - echo "Changes from $mb to $onto:" + if test -n "$verbose" + then + echo "Changes from $mb to $onto:" + fi # We want color (if set), but no pager GIT_PAGER='' git diff --stat --summary "$mb" "$onto" fi -# Detach HEAD and reset the tree -echo "First, rewinding head to replay your work on top of it..." -git checkout -q "$onto^0" || die "could not detach HEAD" -git update-ref ORIG_HEAD $branch - # If the $onto is a proper descendant of the tip of the branch, then -# we just fast forwarded. +# we just fast-forwarded. if test "$mb" = "$branch" then - echo >&2 "Fast-forwarded $branch_name to $onto_name." + say "Fast-forwarded $branch_name to $onto_name." move_to_original_branch exit 0 fi +if test -n "$rebase_root" +then + revisions="$onto..$orig_head" +else + revisions="$upstream..$orig_head" +fi + if test -z "$do_merge" then git format-patch -k --stdout --full-index --ignore-if-in-upstream \ - "$upstream..$orig_head" | + $root_flag "$revisions" | git am $git_am_opt --rebasing --resolvemsg="$RESOLVEMSG" && move_to_original_branch ret=$? test 0 != $ret -a -d "$GIT_DIR"/rebase-apply && echo $head_name > "$GIT_DIR"/rebase-apply/head-name && echo $onto > "$GIT_DIR"/rebase-apply/onto && - echo $orig_head > "$GIT_DIR"/rebase-apply/orig-head + echo $orig_head > "$GIT_DIR"/rebase-apply/orig-head && + echo "$GIT_QUIET" > "$GIT_DIR"/rebase-apply/quiet exit $ret fi @@ -425,9 +560,10 @@ prev_head=$orig_head echo "$prev_head" > "$dotest/prev_head" echo "$orig_head" > "$dotest/orig-head" echo "$head_name" > "$dotest/head-name" +echo "$GIT_QUIET" > "$dotest/quiet" msgnum=0 -for cmt in `git rev-list --reverse --no-merges "$upstream..$orig_head"` +for cmt in `git rev-list --reverse --no-merges "$revisions"` do msgnum=$(($msgnum + 1)) echo "$cmt" > "$dotest/cmt.$msgnum" |